bug#7484: 24.0.50; Network functions from process.c aren't built anymore

[Chong Yidong]

Glenn Morris <rgm@gnu.org> writes:

>> At least 2 network functions defined in process.c are not built anymore.
>> This regression is at most a few days old.
>>
>> The functions that are missing in my compiled Emacs are
>>
>>   network-interface-list
>>   network-interface-info
>>
>> They are wrapped in
>>
>> #if defined(HAVE_NET_IF_H) && defined(HAVE_SYS_IOCTL_H)
>
> Presumably all tests of HAVE_SYS_IOCTL_H should be removed, following
> the 2010-11-23 change to unconditionally include sys/ioctl.h.

Done.  Thanks.